* {
    padding: 0;
    margin: 0;
}
.w {
    width: 1200px;
    margin: auto;
}
body {
    background-color: #f3f5f7;
    height: 3000px;
}
li {
    list-style: none;
}
a {
    text-decoration: none;
}
.header {
    height: 42px;
    /* background-color: pink; */
    margin: 30px auto;
}
.logo {
    float: left;
    width: 198px;
    height: 42px;
    /* background-color: purple; */
}
.nav {
    float: left;
    margin-left: 60px;
}
.nav ul li{
    float: left;
    margin: 0 15px;
}
.nav ul li a {
    display: block;
    height: 42px;
    padding: 0 10px;
    line-height: 42px;
    font-size: 18px;
    color: #050505;
}
.nav ul li a:hover {
    border-bottom: #00a4ff 2px solid;
    color: #00a4ff;
}
.search {
    float: left;
    width: 412px;
    height: 42px;
    /* background-color:skyblue; */
    margin-left: 50px;
}
.search input {
    float: left;
    width: 360px;
    height: 40px;
    border: 1px solid #00a4ff;
    border-right: none;
    color: #bfbfbf;
    font-size: 14px;
    text-indent: 1.5em;
}
.search button {
    float: left;
    width: 50px;
    height: 42px;
    border: 0;
    background-image: url(images/btn.png);
}
.user {
    float: right;
    margin-right: 30px;
    line-height: 42px;
}

/* banner区域 */
.banner {
    height: 420px;
    background-color: #1c036c;
}
.banner .w{
    height: 420px;
    background: url(images/banner2.png) no-repeat top center;
}
.subnav {
    float: left;
    width: 190px;
    height: 420px;
    background-color: rgba(0, 0, 0, .3);
}
.subnav ul li {
    height: 45px;
    line-height: 45px;
    padding: 0 20px;
    font-size: 14px;
}
.subnav ul li a {
   font-size: 14px;
   color: #fff; 
}
.subnav ul li a span {
    float: right;
    /* margin-right: 30px; */
}
.subnav ul li a:hover {
    color: #00b4ff;
}
.course {
    float: right;
    width: 230px;
    height: 310px;
    margin-top: 50px;
    background-color: #ffffff;
}
.course h2{
    /* display: block; */
    height: 48px;
    background-color: #9bceea;
    font-size: 18px;
    color: #ffffff;
    text-align: center;
    line-height: 48px;
    margin: auto;
}
.bd {
    padding: 0 20px;
}
.bd ul li {
    padding: 15px 0;
    border-bottom: 1px solid #ccc;
}
.bd ul li h4{
    font-size: 16px;
    color: #4e4e4e;
}
.bd ul li p {
    font-size: 12px;
    color: #a5a5a5;
}
.bd a {
    display: block;
    height: 38px;
    line-height: 38px;
    text-align: center;
    font-size: 16px;
    color: #00a4ff;
    border: 1px solid #00a4ff;
    font-weight: 700;
    margin-top: 5px;
}

.goods {
    height: 60px;
    /* background-color: pink; */
    box-shadow: 0 2px 3px 3px rgba(0, 0, 0, .1);
    margin-top: 10px;
}
.goods h3 {
    float: left;
    font-size: 16px;
    color: #00a4ff;
    padding: 20px 0;
    margin-left: 35px;
}
.goods-item {
    float: left;
    margin-left: 35px;
    padding: 20px 0;
}
.goods-item ul li {
    float: left;
    padding: 0 35px;
    font-size: 16px;
    color: #050505;
    border-left: 1px solid #bfbfbf;
}
.goods .mod {
    float: right;
    padding: 20px 0;
    margin-right: 35px;
    font-size: 14px;
    color: #00a4ff;
}
.goods .goods-item ul li a {
    font-size: 16px;
    color: #050505;
}
.box {
    margin-top: 35px;
    height: 630px;
}
.box-hd {
    height: 42px;
}
.box .box-hd h3{
    float: left;
    font-size: 20px;
    color: #494949;
}
.box .box-hd p {
    float: right;
    margin-right: 32px;
    margin-top: 10px;
}
.box .box-hd p a {
    font-size: 12px;
    color: #a5a5a5;
}
.box .box-bd {
    width: 1225px;
}
.box-bd ul li {
    position: relative;
    float: left;
    width: 228px;
    height: 270px;
    background-color: #fff;
    margin-right: 15px;
    margin-bottom: 15px;
}
.box-bd ul li a > img {
    width: 100%;
}
.box-bd ul li a em {
    position: absolute;
    top: 5px;
    right: -4px;
}
.box-bd ul li a p {
    padding: 0 20px 0 25px;
    color: #050505;
    font-size: 14px;
    margin: 20px 0;
}
.box-bd .info {
    padding: 0 20px 0 25px;
    font-size: 12px;
    color: #999;
}
.box-bd .info span{
    color: #ff7c2d;
}
.rumen {
    height: 435px;
    /* background-color: pink; */
    /* background-color: pink; */
    margin-top: 35px;
}
.rumen .top{
    height: 43px;
}
.rumen .top h3 {
    float: left;
    font-size: 20px;
    color: #494949;
}
.rumen .top ul {
    margin-left: 320px;
}
.rumen .top ul li {
    float: left;
    padding: 0 30px;
    margin-top: 10px;
}
.rumen .top ul li a {
    font-size: 16px;
    color: #868686;
}
.rumen .top ul li a:hover{
    color: #00a4ff;
}
.rumen .top .all a {
    float: right;
    margin-right: 30px;
    margin-top: 10px;
    font-size: 12px;
    color: #a5a5a5;
}
.rumen .center {
    height: 392px;
    width: 1250px;
    /* background-color:pink; */
    /* border-right-color: rebeccapurple; */
}
.rumen .center img {
    float: left;
}
.rumen .center-right {
    width: 970px;
    height: 392px;
    float: left;
    /* background-color: skyblue; */
    margin-left: 15px;
}
.center-right ul {
    /* margin-top: 20px; */
}
.center-right ul li {
    float: left;
    width: 230px;
    height: 270px;
    /* background-color: red; */
    margin-right: 12px;
    margin-top: 13px;
}
.center-right ul li img {
    margin-bottom: 25px;
    width: 100%;
}
.center-right ul li p {
    padding: 0 20px 0 25px;
    font-size: 14px;
    color: #050505;
}

.center-right ul li .info {
    padding: 10px 20px 0 25px;
    font-size: 12px;
    color: #999999;
}
.center-right ul li .info span{
    color: #ff7c2d;
}
.footer {
    height: 415px;
    /* background-color: pink; */
    margin-top: 30px;
}
.footer .w{
    padding-top: 35px;
}
.copyright {
    float: left;
}
.links {
    float: right;
}
.copyright p {
    font-size: 12px;
    color: #666;
    margin: 20px 0 15px 0;
}
.copyright .app {
    display: block;
    height: 33px;
    width: 118px;
    border: 1px solid #00a4ff;
    line-height: 33px;
    text-align: center;
    color: #00a4ff;
}
.links .link-left,.link-center,.link-right{
    float: left;
    margin-left: 145px;
}
.links h3{
    font-size: 16px;
    color: #333333;
    font-weight: 400;
}
.links li {
    font-size: 12px;
    color: #333333;
}
.links h3{
    margin-bottom: 15px;
}